EP3208109B1 - Pneumatiques de véhicule - Google Patents

Pneumatiques de véhicule Download PDF

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Publication number
EP3208109B1
EP3208109B1 EP16204911.8A EP16204911A EP3208109B1 EP 3208109 B1 EP3208109 B1 EP 3208109B1 EP 16204911 A EP16204911 A EP 16204911A EP 3208109 B1 EP3208109 B1 EP 3208109B1
Authority
EP
European Patent Office
Prior art keywords
steel
belt
pneumatic vehicle
reinforcing elements
vehicle tyre
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP16204911.8A
Other languages
German (de)
English (en)
Other versions
EP3208109A1 (fr
Inventor
Heiner Volk
Christian STRÜBEL
Mathias Wenckel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Reifen Deutschland GmbH
Original Assignee
Continental Reifen Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Reifen Deutschland GmbH filed Critical Continental Reifen Deutschland GmbH
Publication of EP3208109A1 publication Critical patent/EP3208109A1/fr
Application granted granted Critical
Publication of EP3208109B1 publication Critical patent/EP3208109B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
    • B60C9/2009—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords comprising plies of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/28—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers characterised by the belt or breaker dimensions or curvature relative to carcass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2012—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel with particular configuration of the belt cords in the respective belt layers
    • B60C2009/2016—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel with particular configuration of the belt cords in the respective belt layers comprising cords at an angle of 10 to 30 degrees to the circumferential direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2012—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel with particular configuration of the belt cords in the respective belt layers
    • B60C2009/2022—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel with particular configuration of the belt cords in the respective belt layers comprising cords at an angle of 60 to 90 degrees to the circumferential direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0064—Reinforcements comprising monofilaments

Definitions

  • the invention relates to a radial pneumatic vehicle tire, in particular for passenger cars, with a belt bandage of at least two belt layers, a profiled tread, bead areas with bead cores and a particular single-layer carcass ply with textile reinforcements, wherein the belt plies embedded in a rubber compounding parallel and spaced strength support steel, wherein the steel reinforcing members in the first belt ply intersect the steel reinforcing members in the second belt ply, and between the carcass ply and the first belt ply, symmetrical to the equatorial plane, a reinforcing strip having a width smaller than 30% of the width is installed the first belt layer and which contains strength member which are parallel to each other and at an angle of 50 ° to 90 ° to the circumferential direction.
  • Such a passenger car pneumatic radial tire is from the DE 10 2013 107 475 A1 known.
  • This tire has belt layers with steel cords as a strength carrier.
  • a reinforcing strip which in the axial direction has a width of at least 15.0 mm and at most 50% of the width of the first belt ply.
  • the mutually parallel reinforcement of the reinforcing strip consist of a textile material and extend to the circumferential direction at an angle of 20 ° to 90 °.
  • This tire is intended to allow increased dielectric strength with low material consumption while providing greater freedom for the profile design.
  • the reinforcements in the two belt layers are steel monofilaments with a round cross-section with a diameter of 0.35 mm.
  • the belt package includes a third Belt layer in the function of a barrier layer, which is arranged at least in the region of the equatorial plane of the pneumatic vehicle tire, wherein the strength members in this third belt layer steel monofilaments with a diameter of 0.20 mm to 0.60 mm, which are parallel to each other and at an angle from 50 ° to 90 ° to the circumferential direction of the pneumatic vehicle tire.
  • the width of this third belt ply is from 30% to 110% of the width of the first belt ply and may be radially inward or radially outboard of the belt package.
  • Such a pneumatic vehicle tire is intended to have a rolling resistance-optimized belt construction which maintains or improves the cornering force at a high level and also helps the pneumatic vehicle tire pass the so-called plunger test.
  • the plunger test is a static test of the strength of the pneumatic vehicle tire against penetrating road obstacles and is carried out by means of a piercing or pushing steel mandrel having a hemispherical end, wherein the steel mandrel in the region of the equatorial plane of the tire placed vertically on the tread and at a predetermined penetration speed is pressed.
  • the invention is therefore based on the object to perform a pneumatic vehicle tire of the type mentioned in such a way that a further reduction in the weight of the belt layers and thus the rolling resistance is possible without the vehicle handling, in particular the cornering stiffness is impaired.
  • the object is achieved according to the invention characterized in that the strength element in the reinforcing strip steel monofilaments with a diameter of 0.20 mm to 0.40 mm and that the steel reinforcements in the belt plies are monofilaments with a diameter of 0.20 mm to 0.40 mm or steel cords of construction 2 x 0.28 mm to 2 x 0.32 mm.
  • the weight of the pneumatic vehicle tire can be further reduced and that a relatively narrow reinforcing strip in the zenith region of the tire is sufficient to keep the handling properties of the tire at a good level, in particular a rapid construction of Side forces and a good "cornering stiffness" to ensure.
  • the reduced weight desirably reduces the rolling resistance of the tire.
  • the reinforcing strip has a width of 20 mm to 50 mm, in particular up to 40 mm. Although reinforcing strips with widths in this range are relatively narrow, the desired technical effects, in particular good handling properties, can be ensured.
  • the design of the reinforcements in the reinforcing strip is also important in this context. Particularly preferred is an embodiment in which the reinforcing strips in the reinforcing strip have a diameter of 0.28 mm to 0.32 mm, in particular up to 0.30 mm, and preferably of 0.30 mm. A low weight of the pneumatic vehicle tire is thereby supported.
  • steel cords In the belt layers of inventive pneumatic vehicle tires, common and proven steel cords can also be used as strength carriers.
  • Such steel cords include steel cords of the constructions 2 x 0.28 mm, 2 x 0.30 mm and 2 x 0.32 mm.
  • the steel monofilaments in the belt layers have the same diameter as the steel Monofilaments in the reinforcement strip. This measure simplifies the production of pneumatic vehicle tires according to the invention and makes it possible, with a suitable choice of the diameter of the steel monofilaments, to make the belt layers and the reinforcing strips particularly thin.
  • the reinforcing elements in the belt layers can run under an angle to the circumferential direction which is normal for reinforcements in belt plies, in particular at an angle of 18 ° to 34 °, preferably 20 ° to 28 °.
  • the strength carrier in the reinforcing strip it is advantageous if these extend at an angle to the circumferential direction, which is greater, in particular by at least 15 ° greater than the angle at which the reinforcing elements run in the belt layers to the circumferential direction.
  • the mentioned angle of the reinforcement in the reinforcing strip to the circumferential direction can be up to 70 °.
  • executed pneumatic vehicle tires can also be tires for vans or light trucks.
  • FIG. 1 schematically shows a cross section through a pneumatic vehicle tire, described in more detail.
  • executed pneumatic vehicle tires are C1 or C2 tires, therefore tires for cars, vans or light trucks, in Radialbauart.
  • a profiled tread 1 a belt assembly 2 of several, especially two, belt layers 2a, 2b, preferably a single-layer carcass ply 3, an airtight inner layer 4, bead areas with bead cores 5 and side walls 6.
  • the belt assembly 2 may further comprise a non-illustrated, single or multi-layer executed belt bandage with at least substantially extending in the circumferential direction of strength members made of a textile material, such as nylon.
  • the profiled tread 1 may comprise profile blocks, profile ribs and the like and circumferential grooves, transverse grooves, other grooves and notches in a conventional manner.
  • the carcass ply 3 contains in particular textile reinforcing members, for example of polyester or rayon, which are embedded in a rubber compound, the carcass rubber, and run in the carcass ply 3 at least substantially in the radial direction, therefore at right angles to the circumferential direction of the tire.
  • the carcass ply is wrapped around the bead core 5 in each bead area, the carcass puffs 3a thus formed terminate in the area of the side walls 6.
  • the belt plies 2a, 2b contain steel reinforcing members which are either monofilaments having a diameter of 0.20 mm to 0.40 mm or steel cords of construction 2 x 0.28 mm to 2 x 0.32 mm. Preference is given to cross-section round monofilaments having a diameter of 0.28 mm to 0.32 mm, in particular of 0.30 mm, or steel cords of the construction 2 x 0.28 mm, 2 x 0.30 mm 2 x 0.32 mm ,
  • the steel reinforcing members extend in each belt layer 2a, 2b in each case parallel to one another and at an angle of 18 ° to 34 °, in particular 20 ° to 28 °, to the circumferential direction of the tire.
  • the course of the steel reinforcing members in the two belt plies 2a, 2b is in a manner known per se such that the steel reinforcing members in one belt ply 2a intersect the steel reinforcing members in the second belt ply 2b.
  • the radially innermost belt ply 2a a reinforcing strip 7 over the circumference of the tire.
  • the reinforcing strip 7 has a constant width b 1 over its circumferential extension, which is smaller than 30% of the width of the first belt layer 2 a, the width b 1 being 20 mm to 50 mm depending on the type of tire.
  • the reinforcing strip 7 consists of embedded in a rubber compound, parallel to each other strength members made of steel, which are oriented at a relatively large angle of 50 ° to 90 °, in particular of up to 70 ° to the circumferential direction, wherein in a preferred embodiment, the strength carrier in Reinforcement strip 7, the steel reinforcing elements in the first belt layer 2a cross.
  • the steel reinforcements in the reinforcing strip 7 are round steel monofilaments with a diameter of 0.20 mm to 0.40 mm, in particular from 0.28 mm to 0.32 mm, preferably 0.30 mm, in cross-section.
  • the belt plies 2a, 2b use relatively thin and light steel reinforcements, in particular monofilaments with a diameter of up to 0.30 mm, whereby the weight of the pneumatic vehicle tire and thus also the rolling resistance are lower than in conventional designs.
  • the narrow reinforcing strip 7 in the region of the tire head has proven to be sufficient to ensure good handling properties, in particular a good cornering stiffness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Claims (11)

  1. Pneumatique de véhicule de type radial, destiné en particulier à des voitures de tourisme, comprenant une bande d'armature (2) comprenant au moins deux couches d'armature (2a, 2b), une bande de roulement profilée (1), des zones de talon comportant des tringles de talon (5) et une couche de carcasse (3) notamment monocouche comportant des supports de renforcement textiles, les couches d'armature (2a, 2b) comportant des supports de renforcement en acier noyés dans un mélange de caoutchoucs et disposés parallèlement à distance les uns des autres, les supports de renforcement en acier de la première couche d'armature (2a) croisant les supports de renforcement en acier de la deuxième couche d'armature (2a, 2b) et une bande de renforcement (7), qui a une largeur (b1) inférieure à 30 % de la largeur de la première couche d'armature (2a) et qui contient des supports de renforcement s'étendant parallèlement les uns aux autres et formant un angle de 50° à 90° par rapport à la direction circonférentielle, étant incorporée entre la couche de carcasse (3) et la première couche d'armature (2a, 2b), symétriquement au plan équatorial,
    caractérisé en ce que
    les supports de renforcement de la bande de renforcement (7) sont des monofilaments en acier ayant un diamètre de 0,20 mm à 0,40 mm et en ce que les supports de renforcement en acier des couches d'armature (2a, 2b) sont des monofilaments ayant un diamètre de 0,20 mm à 0,40 mm ou des cordons en acier de la structure de 2 x 0,28 mm à 2 x 0,32 mm.
  2. Pneumatique de véhicule selon la revendication 1, caractérisé en ce que la bande de renforcement (7) a une largeur (b1) de 20 mm à 50 mm, en particulier jusqu'à 40 mm.
  3. Pneumatique de véhicule selon la revendication 1 ou 2, caractérisé en ce que les supports de renforcement de la bande de renforcement (7) sont des monofilaments en acier ayant un diamètre de 0,28 mm à 0,32 mm, notamment jusqu'à 0,30 mm, de préférence de 0,30 mm.
  4. Pneumatique de véhicule selon la revendication 1 ou 2, caractérisé en ce que les monofilaments des couches d'armature (2a, 2b) ont un diamètre de 0,28 mm à 0,32 mm, en particulier de 0,30 mm.
  5. Pneumatique de véhicule selon l'une des revendications 1 à 3, caractérisé en ce que les cordons en acier des couches d'armature (2a, 2b) ont la construction de 2 x 0,28 mm.
  6. Pneumatique de véhicule selon l'une des revendications 1 à 3, caractérisé en ce que les cordons en acier des couches d'armature (2a, 2b) ont la construction de 2 x 0,30 mm.
  7. Pneumatique de véhicule selon l'une des revendications 1 à 3, caractérisé en ce que les cordons en acier des couches d'armature (2a, 2b) ont la construction de 2 x 0,32 mm.
  8. Pneumatique de véhicule selon l'une des revendications 1 à 3, caractérisé en ce que les monofilaments en acier des couches d'armature (2a, 2b) ont le même diamètre que les monofilaments en acier de la bande de renforcement (7).
  9. Pneumatique de véhicule selon l'une des revendications 1 à 5, caractérisé en ce que les supports de renforcement des couches d'armature (2a, 2b) forment un angle de 18° à 34°, en particulier de 20° à 28°, par rapport à la direction circonférentielle.
  10. Pneumatique de véhicule selon l'une des revendications 1 à 5, caractérisé en ce que les supports de renforcement de la bande de renforcement (7) s'étendent en formant un angle pouvant aller jusqu'à 70° par rapport à la direction circonférentielle.
  11. Pneumatique de véhicule selon l'une des revendications 1 à 10, caractérisé en ce qu'il s'agit d'un pneumatique pour fourgonnette ou camion léger.
EP16204911.8A 2016-02-16 2016-12-19 Pneumatiques de véhicule Not-in-force EP3208109B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016202295.4A DE102016202295A1 (de) 2016-02-16 2016-02-16 Fahrzeugluftreifen

Publications (2)

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EP3208109A1 EP3208109A1 (fr) 2017-08-23
EP3208109B1 true EP3208109B1 (fr) 2019-10-09

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EP16204911.8A Not-in-force EP3208109B1 (fr) 2016-02-16 2016-12-19 Pneumatiques de véhicule

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DE (1) DE102016202295A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114616108B (zh) 2019-10-23 2023-09-08 米其林集团总公司 包括优化的结构的轮胎

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038199A1 (de) 2010-10-14 2012-04-19 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102013107475A1 (de) * 2013-07-15 2015-01-15 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen

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* Cited by examiner, † Cited by third party
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DE102016202295A1 (de) 2017-08-17
EP3208109A1 (fr) 2017-08-23

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